diff --git a/templates/map b/templates/map
--- a/templates/map
+++ b/templates/map
@@ -27,3 +27,4 @@ filerevparent = "<tr><td class="metatag"
 fileannotateparent = "<tr><td class="metatag">parent:</td><td><a href="?cmd=annotate;file=#file#;filenode=#node#">#node#</a></td></tr>"
 tags = tags.tmpl
 tagentry = "<div class="parity#parity#"><tt>#node#</tt> <a href="?cmd=changeset;node=#node#">#tag#</a><br /></div>"
+diffblock = "<div class="parity#parity#">#lines#</div>"
\ No newline at end of file